Home / 18,430.76-25,426.36-12,460.26

Finding the Fourth Proportional to 18,430.76, 25,426.36 and 12,460.26

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Solution

The fourth proportional to 18,430.76, 25,426.36 and 12,460.26 is: 17,189.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.76 : 25,426.36 = 12,460.26 : x
  2. Step 2: Convert to fraction form
    18,430.76/25,426.36 = 12,460.26/x
  3. Step 3: Cross multiply
    18,430.76x = 25,426.36 × 12,460.26
  4. Step 4: Simplify right side
    18,430.76x = 316,819,056.45
  5. Step 5: Solve for x
    x = 316,819,056.45/18,430.76
  6. Step 6: Final answer
    x = 17,189.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.